ENT Ear e97e400c Common age for otosclerosis is A 5-10 years B 10-20 years C 20-30 years D 30-45 years High-Yield Explanation Hearing loss usually stas between 20 to 30 years of age and is rare before 10 and after 40 years. (Ref: Textbook of diseases of ENT, PL Dhingra, 7th edition, pg no. 95)